Manuals / Optimus / Car Audio and Video / Car Stereo System

Optimus 120-2154, 120-2155 manual Ohms. Your local RadioShack store carries a full line of speakers

Models: 120-2155

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4 Ohms. Your local RadioShack store carries a full line of speakers.

You must connect the GROUND, +12V TO IGNITION, and +12V TO BATTERY wires first, then make all other connections as described in the following sections before you plug the harness with the 14-pin connector into the stereo. If you do not make connections in the order shown, damage to the stereo is possible if any wire connections are made incorrectly.

You must connect a separate wire to each speaker terminal as described in the following procedure. Do not use a common wire or chassis ground for any speaker connection.

Note: The wires in the wiring harness have the following colors and labels.

(Black) - Ground

(Red) - +12V to Ignition

(Yellow) - +12V to Battery

(Blue/White) - AMP Remote Turn on 500 mA MAX

(White) - Front Left Speaker (+)

(White/Black) - Front Left Speaker (-)

(Gray) - Front Right Speaker (+)

(Gray/Black) - Front Right Speaker (-)

(Green) - Rear Left Speaker (+)

(Green/Black) - Rear Left Speaker (-)

(Violet) - Rear Right Speaker (+)

(Violet/Black) - Rear Right Speaker (-)

Using an Adapter Harness

If you are replacing an existing stereo, or if your vehicle has been factory-wired for autosound components, you might be able to use an adapter harness to connect the power and speakers. RadioShack stores sell adapter harnesses for most vehicles.

Follow the directions that come with the adapter harness to temporarily connect the ground, power, optional components, and speakers. Then go to "Connecting the Antenna" below.

Connecting Ground, Power, and Optional Components

Follow these steps to connect the harness with the 14-pin connector to ground, primary and memory backup power, and optional components.

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Optimus 120-2154, 120-2155 Ohms. Your local RadioShack store carries a full line of speakers, Using an Adapter Harness

Contents

Faxback Doc. # High-Power In-Dash AM/FM Stereo CD PlayerFeatures 120-2154/55when you drive at night the best possible sound, regardless of the signal level GENERALlet you easily adjust high and low sounds low volume levelsPage Which terminal in my vehicles fuse box is for accessories? InstallationBEFORE YOU BEGIN THE INSTALLATION How do I connect a wire to the fuse box?Be sure to avoid obstructions behind the mounting surface Routing Speaker Wiresit is mounted Removing the Shipping ScrewConnecting Ground, Power, and Optional Components Black - Ground Red - +12V to Ignition Yellow - +12V to BatteryUsing an Adapter Harness 4 Ohms. Your local RadioShack store carries a full line of speakersCheck the equalizer/boosters owners manual for directions Black - Ground Red - + 12V to Ignition Yellow - + 12V to BatteryConnecting an Equalizer/Booster Blue/White - AMP Remote Turn on 500 mA MAXWhite - Front Left Speaker + White/Black - Front Left Speaker Connecting Two Pairs of Speakers7. Connect the green wire to the left rear speakers positive terminal Gray - Front Right Speaker + Gray/Black - Front Right SpeakerGray - Right Speaker + Gray/Black - Right Speaker Green - \ 3. Connect the white wire to the left speakers positive terminalWhite - Left Speaker + White/Black - Left Speaker Green/Black - \\ Do Not Connect Violet Violet/Blackthe tape while setting 2CH/4CH. Continue with Step TESTING THE CONNECTIONS2. Disconnect the wire harness and the antenna MOUNTING THE STEREOREMOVING THE STEREO FROM THE DASH 7. Reconnect the wire harness and the antenna8. Slide the stereo into the sleeve until it locks into place 3. Press RLS to remove the stereos control panelNote The keys are labeled to show their top edges 6. Disconnect the wire harness and the antenna8. Reconnect the cable to the vehicle batterys negative - terminal 5. Remove the keys from the slotsINSTALLING THE CONTROL PANEL High-Power In-Dash AM/FM Stereo CDUSING THE CONTROL PANEL PlayerOperation SETTING THE CLOCK 1. Press ON/OFF to turn on the stereoADJUSTING THE SOUND BASIC OPERATION TURNING THE STEREO ON AND OFFIf bAS, TRE, bAL, or FAd and the number disappear before you press Follow these steps to store an FSM settingnumber appear The LOUD button is lit continuously while the stereo is onDISPLAYING THE CLOCK Note FSM I or FSM II blinks while you adjust the controls1. Repeatedly press FSM until FSM I or FSM II appears While the radio or a CD is playing, press CLOCK to display the clockStoring Stations Notes ST appears when an FM signal is received in stereoMEMORY TUNING 2. Tune to the station you want to storeIf the stereo could not find any strong stations, P memorySelecting a Stored Station Scanning Stored StationsCAUTIONS Play only CDs that have this mark on them COMPACT D I S C 3. Press + or - to increase or decrease the volume as desiredCD PLAYER OPERATION DIGITAL SOUNDNote If you pause a CD for more then 5 minutes, the stereo turns off 5. To remove a CD from the CD player, press symbol. EJ cd appearsresume play, press CD again SELECTING A TRACKSWITCHING BETWEEN THE CD AND THE RADIO SCANNING THE TRACKSTo begin scanning, press SCN/3. SCN appears during scanning Problem TroubleshootingIndicator Clean the CD see CDCD Player High-Power In-Dash AM/FM Stereoand Maintenance CareReplacing the Red Power Wires Fuse CD CARE TIPSREPLACING A FUSE 3. Grasp the fuses plastic end and pull it out 6. If necessary, reinstall the stereo in the dash7. Reconnect the cable to the vehicle batterys negative - terminal 5. Grasp the new fuses plastic end and push it inIF Rejection Signal-to-Noise S/N Ratio88-108 MHz Image RejectionNumber of Channels WeightPick-Up System Error Correction